Question

When nh3(aq) is added to the green solution containing ni(h2o)6, a grey green precipitate a1 is formed. this precipitate dissolves in an excess of nh3 to give a blue violet solution

Answer 1

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the green solution containing ni(h2o)6, a grey green precipitate a1 is formed. this precipitate dissolves in an excess of nh3 to give a blue violet solution has to the occupation speed at same time of velocity.